JP6142383B1 - Water quality improvement device - Google Patents

Abstract

An object of the present invention is to provide a water quality improvement device capable of drastically improving an oxygen-deficient environment by mixing air into water led to a bottom water area and leading water having a high oxygen content to the bottom water area. . SOLUTION: A surface wave intake tank 8 having a check valve for storing water so that surface waves 7 are sequentially stored in the tank, and a height adjusting means 20 for adjusting the height of the intake tank 8, The upper end of one end is connected in communication with the bottom of the intake tank 8 side, while the lower end has a downflow guide pipe 32 having a discharge port 37 for discharging intake water toward the bottom water area, and a surface wave intake 12 A tethering means 47 that corresponds to the direction in which the surface wave 7 rushes and is fixed to a specific water area, and is identified by the surface water area, the bottom water area in an oxygen-deficient state, and the middle water area between these water areas An air supply device 50 that can supply air to a flow path from the intake tank 8 to the outlet 37 of the downflow guide pipe 32 is provided. [Selection] Figure 1

Description

  The present invention relates to a water quality improvement device.

In the inland sea area (depth 15-20m) that accepts water flowing out from urban lakes, rivers, and the like, an oxygen-deficient state with anoxic water mass is generated in summer when the temperature rises. The city's domestic wastewater contains nitrogen, phosphorus, etc., flowing into the inland sea through the river, producing a eutrophication situation, and under that condition, phytoplankton generated in large quantities due to rising water temperature fell as a dead body At the same time, it is said that oxygen deficiency occurs by consuming oxygen in the sea water when bacteria decompose it. If it becomes oxygen deficient, shellfish that live on the seabed can not breathe and die, algae disappear, fish disappear, blue tide is generated by sulfide contained in anoxic water mass, and sulfide that surfaced on the sea surface There are many examples of damage such as the fact that the objects promote the deterioration of the coastal structures and the sludge deposited on the sea floor becomes a source of harmful substances. In the summer, it is said that the surface layer heated by the sun and the seawater in the cold bottom layer are less likely to mix, and it is likely that such an oxygen deficiency is likely to occur.
One method for eliminating such an oxygen deficiency state is disclosed in Patent Document 1.

  Japanese Patent No. 4767704

The invention disclosed in Patent Document 1 includes a float, an anchor that fixes the float through a tendon, and is fixed in water by the anchor and is movable up and down by a winch of the float. A cylindrical apparatus main body, and a device installed in the apparatus main body and sucking water from a suction port at the top of the apparatus main body, and the sucked water from the discharge port at the bottom of the apparatus main body to the bottom layer in the depression or fence Suction discharge means for discharging to the bottom layer in a closed area surrounded by a control device, a control device provided on the float for controlling the vertical movement of the winch, and electrically connected to the control device and provided on the float or the suction port. And an ultrasonic sonic meter that measures the vertical distribution of water density in stratified sea areas and closed areas. Based on the linear distribution, [Formula 1] incorporates algorithms to determine the optimal depth -h _E circulating flow is formed in a closed region enclosed by depressions in or fence than, the position of the suction port of the device body a water quality improvement apparatus characterized by controlling the winch to the moved becomes the optimum depth -h _E in the vertical direction.
This water quality improvement device is equipped with a submersible motor and impeller as suction and discharge means and circulates seawater, so it is not only necessary to configure a power feeding facility from a remote location, but also requires power for driving. Therefore, the operation cost is enormous and it is not preferable as an apparatus for improving the seed water quality.
In view of such a situation, the present applicant, for example, in the Japanese Patent Application No. 2015-149019, releases the descending flow generated by utilizing wave energy that is naturally generated without using any power supply equipment and electric power, and then rises through the anoxic mass. A water quality improvement device was proposed to eliminate the oxygen deficiency state by using a flow.
The device is installed on the surface of a specific ocean area stratified by a surface water area with a high dissolved oxygen concentration, a bottom water area with a low dissolved oxygen concentration and a lack of oxygen, and a middle water area between them. On the other hand, the lower part of the device is a water quality improvement device configured to guide seawater with high dissolved oxygen concentration taken in from the surface layer to the bottom water area for discharge, and is a vertical cylinder type that captures surface waves on the outer circumference The surface wave intake tank, which is the main part of the upper part of the device, which has a tank pipe that extends in a downwardly communicating manner at the bottom while the mouth is opened, and the height of the opening lower edge of the surface wave intake port is the surface layer Height adjustment means that can be adjusted to enable wave acquisition, and forward direction that is the direction in which surface wave waves push around the outer periphery of the surface wave intake tank to correspond the base to the opening lower edge height of the surface wave intake port Slow falling to A surface wave crawling guide that extends in the shape of a pipe, and a pipe whose upper part is connected to the tank pipe side while being connected to the tank pipe, and whose lower part extends long downward. A downflow guide pipe, which is a lower part of the apparatus having an outlet opening for discharging intake water from the inside of the intake tank, is provided.
However, this device takes in surface waves containing oxygen and guides them to the bottom water area and is effective in improving the water quality.However, there are many cases where oxygen content is small in surface waves, and such surface waves are Even if it leads to the bottom water area, it may not be able to effectively solve the lack of oxygen.

  The present invention is intended to solve these problems, and by mixing air with water guided to the bottom water area, water having a high oxygen content is guided to the bottom water area, and the oxygen deficient environment can be greatly improved. It aims at providing the water quality improvement apparatus made to become.

In order to achieve the above object, the present invention is characterized in that the invention described in claim 1 has an intake space inside and can be opened and closed so as to be opened inward by a surface wave inside the surface wave inlet on the outer periphery of the tank. The surface wave wave intake tank, which is an upper part of the apparatus having a check valve for storing water that sequentially accumulates surface wave waves in the tank, and the surface wave wave is adjusted by adjusting the height of the surface wave wave intake tank. A height adjusting means that makes the opening height of the intake port a height capable of taking in the surface wave, and one upper end connected to the bottom on the surface wave intake tank side, while the lower end faces the bottom water area Corresponding to the downward flow guide pipe, which is the lower part of the device with an outlet opening for discharging intake water, and the surface wave intake port corresponding to the direction in which the surface wave is pushed, the position of the device is fixed in a specific water area Mooring means for converting to a downward flow from the surface wave intake tank It is equipped with an air supply device that can supply air to the flow path to the outlet of the inner pipe, and targets specific water areas stratified by the surface water area, the bottom water area in the absence of oxygen, and the middle water area between these water areas The upper part of the device is levitated and the surface wave is taken into the surface wave take-in tank through the surface wave take-in port, while the taken-in water is discharged from the discharge port to the bottom water area through the downflow guide pipe. The air supply device is configured to be configured such that the air supply device is a pumping type, a response member that is a float-type wave actuator that reciprocates up and down according to the vertical motion of the surface wave, and the response An arm that swings up and down around a certain rotation axis by the vertical reciprocation of the member, and an air pump that is connected to a swinging portion above and below this arm and generates pressurized air by swinging An air nozzle that is provided at the lower end of the downflow guide pipe and mixes the compressed air generated by the air pump with the downflow discharged through the outlet, and the compressed air from the air pump And an air supply pipe leading to the

As described above, the invention described in claim 1 has an intake space inside and is provided inside the tank so as to be opened and closed so as to be opened inward by the surface wave inside the surface wave inlet on the outer periphery of the tank. The surface wave intake tank, which is the upper part of the device equipped with a check valve for storing water so that the surface wave is stored in sequence, and the height of the surface wave intake tank to adjust the height of the surface wave intake port The height adjustment means that makes the surface wave uptake possible, and the upper end of one end is connected to the bottom of the surface wave intake tank side, while the lower end discharges the intake water toward the bottom water area A downflow guide tube which is a lower part of the apparatus provided with an opening for discharging, and a mooring means for fixing the position of the apparatus in a specific water area, corresponding to the direction in which the surface wave intake is approaching the surface wave, From the surface wave intake tank to the outlet of the downflow guide pipe Equipped with an air supply device that can supply air to the flow path, the upper part of the device is levitated for a specific water area stratified by the surface water area, the oxygen-deficient bottom water area, and the middle water area between these water areas The surface wave is taken into the surface wave take-in tank through the surface wave take-in port, and the taken-in water is discharged from the discharge port to the bottom water area through the downflow guide pipe. An improvement device, wherein the air supply device is of a pumping type, a response member that is a float-type wave actuator that reciprocates up and down in response to the up-and-down movement of the surface wave, and constant by the up-and-down reciprocation of the response member An arm that swings up and down around the rotation axis, an air pump that is connected to a swinging part above and below the arm and generates pressurized air by swinging, and the downflow guide An air nozzle that is provided at the lower end of the air pump and mixes the compressed air generated by the air pump with the downward flow discharged through the outlet, and an air supply pipe that guides the pressurized air from the air pump to the air nozzle; is provided with the, water quality improvement device high water oxygen content was guided to the bottom layer waters so as to enable significant improvements in hypoxia environment by mixing air in the water is guided to the bottom layer water Can be provided.

  The longitudinal cross-sectional view which shows the water quality improvement apparatus which is one Embodiment of this invention corresponding to the II line | wire of FIG.   The arrow view from the II direction of FIG.   FIG. 3 is a cross-sectional view taken along line III-III in FIG. 1.   The cross-sectional view which shows other embodiment of a water quality improvement apparatus.   The longitudinal cross-sectional view of the water quality improvement apparatus which shows other embodiment corresponding to the VV line of FIG.   The arrow view seen from VI direction of FIG.   The longitudinal cross-sectional view of the water quality improvement apparatus which shows other embodiment corresponding to the VII-VII line of FIG.   VIII-VIII sectional view taken on the line of FIG.   The apparatus cross-sectional view which crosses another embodiment in the surface which passes a surface wave wave inlet.   The S section expanded sectional view of Drawing 7.   The cross-sectional view of the water quality improvement apparatus which shows other embodiment corresponding to the XI-XI line of FIG.   The longitudinal cross-sectional view shown corresponding to the XII-XII line | wire of FIG.   The longitudinal cross-sectional view which shows other embodiment.   The top view of the water quality improvement apparatus which shows other embodiment corresponding to the XIV-XIV line | wire of FIG.   XV-XV sectional view taken on the line of FIG.   The circuit diagram which shows the operating state of the air pump of an air supply apparatus.   The circuit diagram which shows the operating state of the air pump of an air supply apparatus.   Sectional drawing which shows other embodiment.   The schematic front view which shows other embodiment.   The model perspective view which shows other embodiment.

Hereinafter, an embodiment of a water quality improvement apparatus according to the present invention will be described with reference to FIGS.
In FIG. 1, 1 is an inland sea that is part of the ocean, and river water that has passed through the urban area flows into it. As described above, the surface water area 2 has a high dissolved oxygen concentration and the bottom water area 4 has a dissolved oxygen concentration. However, it is in a low oxygen deficiency state and needs to be supplemented with oxygen. The surface water area 2, the middle water area 3, and the bottom water area 4 are stratified, and the water area including the bottom water area 4 below the middle water area 3 has a depression. Even open water areas that are not depressions are included in water quality improvement. 5 is the bottom of the depression. In the surface water area 2, a surface wave 7 from the offshore has traveled in the direction of arrow A. The water depth of the seabed 5 is about 20 m here, and an oxygen deficient state occurs in the bottom water area 4 when the water depth is 15 to 20 m. Although the surface water area 2 has been described as having a high dissolved oxygen concentration, it may not be as high as expected depending on conditions.
The water quality improvement device is manufactured by using metal, resin or the like according to the purpose, but the upper part of the device is levitated for such a marine area and the surface wave 7 is taken in, while the lower part of the device is the bottom water area. It is installed so as to face in the form of a long droop for release.

  The water quality improvement apparatus includes a surface wave wave intake tank 8 as an upper part of the apparatus. The tank 8 has a regular octagonal shape (which may be a quadrangle, a hexagon, a dodecagon, etc.) as viewed from above, and the upper surface of the tank 8 is a work table. 9 and a safety handrail 11 is provided around the entrance and exit. This handrail 11 is a strong peripheral frame, and is hung on a wire hook that is lowered from a self-moving marine crane (not shown) to lift the entire device and transfer it from land to sea or to improve water quality. After moving to the target sea, it can be lowered and put into a floating installation state as shown in FIG. 1 or returned to the land.

  As shown in Fig. 1, each surface of the octagonal surface of the surface wave intake tank 8 whose inside is the intake space has a rectangular surface layer that is divided into two upper and lower stages with a horizontal rail left in the middle. Mouth (one of the surface wave intake means) 12, 12 is arranged, and lightweight check valves 14, 14 made of resin or the like are provided by hinges above and below the inner peripheral side of the surface wave intake 12, 12. Supported by hanging. The three check valves 14 corresponding to the surface wave 7 indicated by the arrow A in FIG. 2 are opened inward by the surface wave 7 as shown in FIG. 1 so that seawater is taken in through the surface wave inlet 12. Since the other check valves 14 remain closed as shown in the right part of FIG. 1, the taken-in seawater is successively stored in the interior. If the check valve 14 is a single plate valve that is one tall and one tall, the check valve 14 is heavy even if the wave is low or high, and it is difficult to open and close, but it is divided into upper and lower like this embodiment. The opening and closing operation is performed lightly and can surely take in seawater, especially at low and high waves. The tank 8 is formed with an air vent hole 9a for venting air from its internal space (take-in space).

  The lower part of the surface wave intake tank 8 is formed in a conical cone shape so that the seawater 17 taken into the tank 8 can easily flow in the direction of a cylindrical tank pipe 18 projecting downward at the center of the tank lower part. . A float (one of height adjusting means) 20 is detachably attached to the outer bottom surface of the lower cone portion of the surface wave take-in tank 8. The float 20 can be adjusted to increase or decrease the buoyancy in a stepwise manner by allowing the float 20 to be separately detached in the circumferential direction. This increase / decrease adjustment work can be performed by lifting the device with a marine crane. The float 20 is provided with an on-off valve that can be operated from above the tank 8, and the floating height is lowered by taking seawater by the operation, or the floating height is raised by removing seawater and introducing air. You may make it possible (refer the water supply port part 75 and the drain port part 76 of FIG. 7).

  A surface wave scooping guide 22 made of metal or resin is provided at eight locations on the outer periphery of the surface wave wave intake tank 8. As shown in FIG. 3, the surface wavy guide 22 is formed of a slightly curved slope plate whose base portion has substantially the same width as the surface wave inlet 12 and whose front is widened outwardly. As shown in FIG. 1, the height of the surface wave 7 is set so as to be located slightly in the water substantially corresponding to the lower edge of the surface wave inlet 12, while the front side is on the side where the surface wave 7 travels. The surface wave 7 is tilted downward and is located several tens of cm to 1 m deep in water. The surface wavy guide 22 is provided with a guide plate 23 that hangs at the base thereof, so that the guide plate 23 can be moved up and down with a pair of left and right guide rails attached to the outer peripheral surface of the surface wave take-in tank 8. At the same time, the base height of the surface wave scooping guide 22 can be made to coincide with the height of the lower edge of the surface wave inlet 12 by turning the screw adjusting tool 25 on the work table 9 and adjusting the lifting rod 26 up and down. It has become. Of course, depending on the case, the surface wave scooping guide 22 can be lowered or raised independently from the lower edge of the surface wave inlet 12. Reference numeral 28 denotes a rippling plate, which is provided so as to rise on both sides of the surface wavy guide 22 corresponding to a radial line from the center of the tank. The wave squeezing plate 28 is a plate that controls the surface wave 7 that rises along the surface wave scooping guide 22 so as to increase the wave while increasing the width from the lateral side and to increase the speed. ing. An adjustment weight (one of height adjustment means) is installed on the work table 9 so as to be concentric with a good balance with respect to the center point of the work table 9, and can be inserted and removed with a fastener. Sometimes it can be stopped.

  A pair of (or four) branch pipes 30 project from the bottom of the tank pipe 18 so as to correspond to the front and back of the traveling direction of the surface wave 7 as a reference. A flexible resin type downflow guide pipe 32 having a specific gravity similar to that of seawater is inserted into each branch pipe 30 at the upper end thereof and fixed with an attachment ring 35. Each of the downflow guide pipes 32 is formed such that the lower end of the downflow guide pipes 32 has a crotch shape and a bow shape in the front-rear direction around the center lower position of the tank 8. As shown in FIG. 1, the shape is defined by a lightweight resin pipe support 33 having a diameter of 1 to 3 m, and this support 33 is mounted around the middle height of each downflow guide pipe 32. By passing through the inner projecting piece of the ring 35 and being fixed, the lower end of the downflow guide pipe 32 is defined as a natural state that hangs down. A discharge port 37 is formed at the lower end of the downflow guide pipe 32 so that the flow from the downflow guide pipe 32 is not discharged at a large angle with respect to the seabed 5 but is discharged at a laid-down angle as small as possible.

  Reference numeral 40 denotes a lower weight (mooring means) on a central line which is a fixing body on the seabed, and is attached to a lower end of a central anchor line (mooring means) 41 such as a link chain passing through the center of the apparatus. The winch (mooring means) 42 on the work table 9 can be wound up and fed out. The upper portion of the central anchor wire 41 passes through the upper passage pipe 44 attached to the lower end of the tank 8 from the air vent 9a of the work table 9, and the middle and lower side is passed through the passage ring 33a of the support 33 to move up and down. It is designed to be guided stably. A plurality of mounting rings 35 are attached to the outer periphery of the downflow guide pipe 32, and a link-like peripheral anchor wire (an anchoring means) 46 is passed through the through-ring 35a and at the tip thereof. A circumferential anchor main body (detachable mooring rod) (mooring means) 47 is attached.

  As shown by the broken line in FIG. 1, the circumferential anchor wire 46 can be adjusted up and down from the work table 9 or the work ship side that can be approached. Therefore, in order to obtain the installation state as shown in FIG. 1, the entire apparatus of FIG. 1 is lifted by a crane ship near the nearby quay before entering the installation target sea area which is the illustrated closed water area, It is assumed that the two peripheral anchor strips 46 and 46 are sufficiently extended downward so that the peripheral anchor bodies 47 and 47 are respectively placed on the work table 9. Then, the crane ship is advanced to the target sea area with the apparatus being lifted, and the entire apparatus is lowered as shown in FIG. At that time, the left surface layer wave intake 12 shown in the drawing is directed in the direction in which the surface layer wave 7 travels, and the peripheral anchor body on the side in which the surface layer wave 7 travels (the left side in the diagram). Only 47 is put into the sea area. The situation at that time can be shown as an arrow X in FIG.

By pulling one of the peripheral anchor filaments 46 (left side in FIG. 1) on the work table 9 or from the crane ship with a winch for the left side (not shown) with respect to the dropped peripheral anchor body 47, the seabed as shown by the solid line in the figure. 5 is moored. At the same time, the lower weight 40 is lowered to position the apparatus. After that, when the other circumferential anchor main body 47 is lowered and the circumferential anchor filament (right side in FIG. 1) 46 is pulled up by the right winch, the main body 47 is moored, and eventually the surface wave 7 proceeds. Setting is completed so that the apparatus is oriented as shown in FIG. 1 by inserting and mooring the other circumferential anchor main body 47 so as to correspond to the traveling side with reference to the direction. After that, if the height of the surface wave scooping guide 22 is adjusted so that the surface wave wave inlet 12 can swallow the surface wave 7, the surface wave 7 is swung up along the surface wave scooping guide 22 and is a low wave. Becomes a wave height and is taken into the tank 8 through the surface wave inlet 12 while opening the check valve 14. The entire apparatus including the surface wave wave intake tank 8 and the downflow guide pipe 32 is kept stationary while the lower weight 40 and the circumferential anchor main bodies 47 and 47 are operating and hardly shakes while the surface wave 7 is pushed. . As indicated by arrow B, seawater in the surface water area 2 is repeatedly swallowed and accumulated in the surface wave intake tank 8 while the check valve 14 is acting, and a water head difference from the external sea level is always generated. Then, the oxygen deficient state is eliminated by being guided through the downflow guide pipes 32 and 32 and discharged to the bottom water area 4 as indicated by an arrow C through the discharge outlet 37.
The length of the downflow guide pipe 32 can be adjusted up and down by making the branch pipe 30 long.

  Here, an air supply device 50 is configured in a path from the tank 8 to the downflow guide pipes 32. Here, a throttle 51 is formed inside the branch pipe 30, and a negative pressure suction type air supply pipe 52 is provided on the branch pipe 30 so that the tip thereof faces the center. Since a downward flow is generated in the air, the air is sucked at a negative pressure, and the air is discharged from the discharge port 37 to the bottom water area 4 while being mixed with seawater. High concentration seawater diffuses and oxygen deficiency is eliminated. It is an air generating means and a supply means at the same time that negative pressure is generated by the downward flow to draw out air.

The combination of the downflow guide pipes 32 and 32 and the lower weight 40 and the central anchor wire 41 before and after the apparatus (left and right in FIG. 1) is, for example, only the downflow guide pipe 32 on the front side (left side), or Even if the front side (left side) downflow guide tube 32 and the lower weight 40 are combined and the rear side (right side) downflow guide tube 32 is omitted, the tank can be oriented as shown in FIG. As shown in FIG. 4, the surface wave inlet 12 may be provided only at one place of the tank 8 or at the front and rear.
As shown in the right column of FIG. 1, the downflow guide pipe 32 can be divided into a flange joint type.

5 and 6 show another embodiment. The same components as those in the embodiment shown in FIGS. 1 to 3 are denoted by the same reference numerals and are not described.
This water quality improvement device makes the intake of the surface wave 7 positive, and the air supply device can also actively generate and supply air.
On the front side corresponding to the surface wave wave inlet 12 of the surface wave wave intake tank 8, the surface wave 7 on the outer periphery of the surface wave wave intake tank 8 is made to correspond to the opening lower edge height of the surface wave wave inlet 12. A surface wave scooping guide 55 that is forwardly descending in a pushing direction A and projecting in a slope shape is provided so as to be movable up and down via a hinge 56, and this surface wave scooping guide 55 is moved up and down by a surface wave 7 provided in front thereof. The surface wave 7 can be taken up into the surface wave take-in tank 8 sequentially through the surface wave take-in port 12 by moving up and down together with the wave actuator (responding member) 58 that can move, and the generating means of the air supply device 60 The cylinder type air pump 61 can be interlocked.

The wave actuator 58 is formed of a cylindrical float arranged on the left and right as shown in FIG. 6, and is attached to the tip of the tank 8 via a pair of left and right arms 64 and 64 supported on both sides of the tank 8 via a rotating shaft 63. It is attached. A guide suspension member 65 is provided for moving the surface wavy guide 55 between the arms 64 and 64. Both arms 64 are connected to a rod so that the air pumps 61 provided on both sides of the tank 8 are linked vertically. 66 is an inlet check valve, 67 is an outlet check valve, and the outlet of the air pump 61 is connected to an air supply pipe 68 to forcibly mix pressurized air into the downflow guide pipe 32. To get. 70 is a suspension anchor, and 71 is a fin keel for making the surface wave inlet 12 face the surface wave A.
As shown in the left column of FIG. 5, the surface wavy guide 55 is formed such that a plurality of water passage openings 55a are formed so that water is guided to the upper surface while descending without resistance when the guide 55 is lowered. You may make it exercise | movement smooth. In this case, the water that has been scooped up by providing the opening / closing guide lid 55b corresponding to the water passage 55a or by providing the guide lid 55c such that the opening / closing guide lid 55b is a fixed lid type is directed toward the surface wave inlet 12. You may make it send sequentially.

7 and 8 show another embodiment. In FIG. 7, 1 is an inland sea that is a part of the ocean, and river water that flows through the urban area flows into it. As described above, the surface water area 2 has a high dissolved oxygen concentration and the bottom water area 4 has a dissolved oxygen concentration. However, it is in a low oxygen deficiency state and needs to be supplemented with oxygen. The surface water area 2, the middle water area 3, and the bottom water area 4 are stratified, and the water area including the bottom water area 4 below the middle water area 3 has a depression. Even open water areas that are not depressions are included in water quality improvement. 5 is the bottom of the depression. In the surface water area 2, a surface wave 7 from the offshore has traveled in the direction of arrow A. The water depth of the seabed 5 is about 20 m here, and an oxygen deficient state occurs in the bottom water area 4 when the water depth is 15 to 20 m. Although the surface water area 2 has been described as having a high dissolved oxygen concentration, it may not be as high as expected depending on conditions.
In addition, in the embodiment of FIG. 7 and FIG. 8, the same code | symbol is attached | subjected about the component similar to embodiment shown in FIG. 5 and FIG. 6, and it replaces with description.
This water quality improvement device makes the intake of the surface wave 7 positive, and the air supply means can also actively generate and supply air.
The surface wave intake tank 8 has a cylindrical shape whose upper and lower sides are closed, and a surface wave intake 12 is formed in the upper peripheral portion so as to be front and rear with respect to the surface wave 7, and the surface wave. The intake port 12 is provided with a check valve 14 that is supported by a horizontal axis hinge and opens inward. A float (height adjusting means) 73 is attached to the outer periphery of the lower part of the surface wave wave intake tank 8 in a hollow shape with an outer peripheral protruding shape.

  The upper surface of the float 73 is formed as a surface wave scooping guide 73a so that it slightly falls in the outer diameter direction and rises in the direction of the surface wave inlet 12. The surface layer extends into the surface wave inlet 12 beyond the guide 73a. Wave 7 is coming in. At that time, the pair of left and right rippling plates 74, 74 erected on the guide 73 a gradually guides it upward while narrowing the urging surface wave 7, and enters the surface wave wave intake tank 8 through the surface wave wave inlet 12. It comes to guide. The float 73 is provided with a water supply port portion 75 and a drain port portion 76, and by adjusting the amount of water in the surface wave intake tank 8, the buoyancy of the tank 8 is adjusted and the height of the upper surface can be adjusted. .

  Arms 64 are supported on the left and right sides of the surface wave take-in tank 8 so as to be movable up and down by a rotating shaft 63, and a wave actuator 58, which is a float provided on the front side of the arm 64, is provided on the surface layer from the front. The wave 7 enables vertical response, and the vertical response enables the cylinder type air pump 61 of the air supply means 60 to be interlocked.

The air supply device 60 has an inlet side check valve 66 and an outlet side check valve 67 as shown in FIG. 5, and the outlet side of the cylinder type air pump 61 is closer to the lower part of the downflow guide pipe 32. It is connected to an air supply pipe (one of the air supply devices) 68 that communicates with the seawater in the downflow guide pipe 32 so that the pressurized air can be forcibly mixed.
A suspension anchor 70 is provided on the surface layer wave take-in tank 8 so that the entire apparatus can be lifted by a crane work boat.
The surface wave wave intake 12 and the check valve 14 can be provided in a radial arrangement of the surface wave wave intake tank 8 as shown in FIG.

As shown in FIG. 10, the S part of FIG. 7 includes a tip fitting 78 inserted into the tip of the downflow guide pipe 32, and an air nozzle 80 fitted with a gap 79 around the tip outer periphery of the fitting 78. The air supply pipe 81 is fitted into the nozzle 80 so as to communicate with it, and the tip of the tip fitting 78 is formed in a stepped small diameter to form a gap 79 so that air is ejected. . 82 may be a spiral groove that jets compressed air in a swirling manner so that pressurized air can be more effectively diffused and mixed in seawater.
If the check valve 14 is of a type that combines the upper and lower ones, it will be difficult to open and close at the time of a small wave. However, as shown in the upper left of FIG. Can also move lightly.
The negative pressure suction type throttle 51 and the nozzle 52 of FIG. 1 may be combined with the air supply device 60.

  The water quality improvement device is suspended by a crane work ship using a suspension anchor 70 and brought to a site water area where the water quality needs to be improved. Before lifting, the circumferential anchor wire 46 is made to be in a state where it is extended sufficiently longer than the downflow guide tube 32 by at least three times. After the crane work boat that has lifted the device arrives at the water area of the site, the elongated anchor line 46 on the left side (wave-carrying side) in FIG. After that, by winding up the circumferential anchor wire 46 by the sea winch, as shown in FIG. 7, the main body 47 is moored to the sea floor 5, and from this state, the pushing action of the surface wave 7 in the A direction works. The entire apparatus is sent in the direction A by the surface wave 7 while being in the moored state, and is in a tension state as shown in FIG. Next, when the circumferential anchor strip 46 on the right side (counter wave side) is thrown into the sea so as to be on the downstream side of the wave together with the main body 47, the circumferential anchor strip 46 is wound up, and the state shown in FIG. 7 is obtained. . The entire apparatus is brought into a state of being substantially stationary without being shaken by the surface wave 7 due to the fact that the downflow guide pipes 32, 32 extend in a bifurcated manner and the peripheral anchor strips 46, 46 are under the mooring of the main body 47. The The height of the surface wave inlet 12 with respect to the surface wave 7 is appropriately adjusted to swallow by raising and lowering the float 73 by water supply / drainage control through the water supply port 75 and the water discharge port 76.

  In the state where the circumferential anchor main body 47 is moored in this way, the surface wave 7 that has been made narrow and high by the surface wave scooping guide 73a and the waving plate 74 opens the check valve 14 and opens the surface wave intake tank 8. After being taken in and temporarily stored inside by the action of the check valve 14, it is guided into the downward flow guide pipe 32 by the height of the head and discharged from the discharge port 37. As the pressurized air is forcibly mixed through the air supply pipes (one of the air supply means) 68, 81 provided anywhere from the upper end of the pipe to the lower end of the pipe, abundant oxygen is supplied to the bottom water area 4. Will be.

11 and 12 show another embodiment. In FIG. 12, 1 ... is an inland sea that is part of the ocean, and river water that flows through the urban area flows into it. As described above, the surface water area 2 has a high dissolved oxygen concentration and the bottom water area 4 has a dissolved oxygen concentration. However, it is in a low oxygen deficiency state and needs to be supplemented with oxygen. The surface water area 2, the middle water area 3, and the bottom water area 4 are stratified, and the water area including the bottom water area 4 below the middle water area 3 has a depression. Even open water areas that are not depressions are included in water quality improvement. 5 is the bottom of the depression. In the surface water area 2, a surface wave 7 from the offshore has traveled in the direction of arrow A. The water depth of the seabed 5 is about 20 m here, and an oxygen deficient state occurs in the bottom water area 4 when the water depth is 15 to 20 m. Although the surface water area 2 has been described as having a high dissolved oxygen concentration, it may not be as high as expected depending on conditions.
In addition, in the embodiment of FIG. 11 and FIG. 12, the same code | symbol is attached | subjected about the component similar to embodiment shown in FIG. 7 and FIG. 8, and it replaces with description.
This water quality improvement device makes the intake of the surface wave 7 positive, and the air supply device can also positively generate and supply pressurized air.
The surface wave take-in tank 8 has a cylindrical shape, a part of which is open at the upper surface and an open shape at the lower part of the drawing cylinder, and is cylindrical at four upper circumferential positions (or eight places). (Or a square tube) -shaped intake cylinder 13 is formed as a surface wave inlet 12 where the inside of the cylinder 13 is front and rear with respect to the surface wave 7, and at the inner end of the surface wave inlet 12. Is provided with a check valve (responsive member) 14 supported by a horizontal axis hinge and opened inward and upward. A float (height adjusting means) 73 is attached to the outer periphery of the lower part of the surface wave wave intake tank 8 in a hollow shape with an outer peripheral protruding shape.
In addition, a detachable dust removing screen 12a is provided on the front side of each surface wave inlet 12 to open the cylinder, and flows along with the surface wave 7 from the direction A, and the residue is captured there and the surface wave inlet. You may comprise so that it may not enter. The screen 12a can remove and remove residue adhered by removal.
The surface wave inlet 12 and the check valve 14 are arranged in four directions in the circumferential direction. However, they can be arranged only in one direction with respect to A in FIG. 12 or in two directions, six directions, and eight directions.

  The upper surface of the float 73 is formed as a surface wave scooping guide 73 a, and this guide 73 a is slightly lowered in the outer diameter direction and raised in the direction of the surface wave inlet 12. The surface wave 7 is gradually lifted along the surface wave scooping guide 73a so as to enter the surface wave inlet 12 and a pair of left and right corrugated plates erected on the surface wave scooping guide 73a. 74 and 74 are guided to gradually increase in height while narrowing the approaching surface wave 7 and are guided into the surface wave intake tank 8 through the surface wave intake 12 at a high speed. The float 73 is provided with a water supply port portion 75 and a drain port portion 76, and by adjusting the amount of water in the surface wave intake tank 8, the buoyancy of the tank 8 is adjusted and the height of the upper surface can be adjusted. .

  Connected to the check valve 14 is a rod end of a cylinder type air pump 83 supported by a hinge as a trunnion support type on the surface wave intake tank 8. The check valve 14 that is opened when the surface wave 7 is pushed up pushes the built-in piston through the rod to generate pressurized air, and the pressurized air passes through the air supply pipe 84 that extends through the tank 8 as indicated by an arrow a. The nozzle 85 is forcibly guided and mixed into the intermediate flow position of the lower precipitation stream B under water pressure. If the air pump 83 is provided with a spring 83a as shown in the upper left of FIG. 12, even if water pressure is acting in the downflow guide pipe 32, air with a stronger pressure is generated and mixed with air. In addition to being able to act, it acts as a return spring and tries to return the check valve 14 to its original closed state quickly and reliably.

  The air supply device 86 has air generating means including a check valve 14 and an air pump 83, and this generating means has an inlet side check valve and an outlet side check valve as shown in FIG. The air supply device 86 is a combination of an air supply pipe 84 and an air supply means such as a nozzle 85. A suspension anchor is provided on the surface wave wave intake tank 8 so that the entire apparatus can be lifted by a crane work boat. While the surface wave inlet 12 and the check valve 14 can be arranged not only in the four-way arrangement but also in the eight-way arrangement, they can also be arranged in one place, two places, three places, etc. in the circumferential position. The nozzle 85 can be provided at the tip of the downflow guide tube 32. 87 is a circumferential anchor wire (anchoring means), 88 is a circumferential anchor body (anchoring means), 89 is a winch (an anchoring means), and the circumferential anchor wire 87 is extended when the winch 89 is unlocked. If the winch 89 is rotated, it can be wound up.

If the check valve 14 is of a type that combines the upper and lower ones, it will be difficult to open and close at the time of a small wave. However, as shown in the upper left of FIG. Can also move lightly. In this case, an air pump 83 is provided for each check valve 14, 14.
Further, the downflow guide pipe 32 is a single pipe in FIG. 12, but it may be provided in a bifurcated branch type as shown in FIG.

The entire water quality improvement device is lifted by the crane work boat and brought to the target water area, the device is levitated and installed on the sea, and the long circumferential anchor wire 87 is inserted into the sea together with the flexible downflow guide pipe 32. If inserted, the circumferential anchor main body 88 becomes moored to the leading side where the wave travels as the wave travels A, and stops in a form in which the direction is defined. The orientation of the device may be defined by the keel 90 on the bottom surface. The height adjustment at which the surface wave inlet 12 is easily taken in is made by adjusting the amount of internal water through the water supply port 75 and the drain port 76.
As a result, as shown in FIG. 12, only one surface layer wave inlet 12 is directed to the side where the wave approaches, and the surface wave 7 is taken in through the inlet 12. The intake of the surface wave 7 causes the seawater to descend as a downward flow through the downward flow guide pipe 32, while the check valve 14 on the front side opens and the air pump 83 is activated so that the pressurized air is in the middle of the downward flow. It is forcibly mixed in, and the surface layer wave mixed with air is guided to the bottom water region 4 in the oxygen deficient state to eliminate the oxygen deficient state. The negative pressure suction type throttle 51 and the nozzle 52 of FIG. 1 may be combined with the air supply device 86. Further, the air supply device 86 may be omitted, and the air supply device may be configured only by the combination of the negative pressure suction type throttle 51 and the nozzle 52. The single downflow guide pipe 32 shown in FIG. 12 can be replaced with one showing a plurality of downflow guide pipes 32 such as the two shown in FIGS. As shown in the right column of FIG. 12, the downflow guide pipe 32 can be divided into a flange joint type.

14 to 17 show another embodiment. In FIG. 15, 1 is an inland sea that is part of the ocean, and river water that flows through the urban area flows into it. As described above, the surface water area 2 has a high dissolved oxygen concentration and the bottom water area 4 has a dissolved oxygen concentration. However, it is in a low oxygen deficiency state and needs to be supplemented with oxygen. The surface water area 2, the middle water area 3, and the bottom water area 4 are stratified, and the water area including the bottom water area 4 below the middle water area 3 has a depression. Even open water areas that are not depressions are included in water quality improvement. 5 is the bottom of the depression. A surface wave 7 is traveling in the direction of arrow A in the surface water area 2. The water depth of the seabed 5 is about 20 m here, and an oxygen deficient state occurs in the bottom water area 4 when the water depth is 15 to 20 m. Although the surface water area 2 has been described as having a high dissolved oxygen concentration, it may not be as high as expected depending on conditions.
7 is a surface wave, and when the device is set offshore to some extent, in fact, it is not the parallel waves (swells) that run from the offshore, but rather the sharp waves of the crest caused by the blowing wind. Focusing on the fact that there are many cases of casual winds, it is intended to effectively use, for example, a phenomenon in which a buoy performs a cruciform motion as energy for the generation of air. .

  A surface wave take-in tank 105 has a vertical cylindrical shape, and the upper surface 106 is closed, while the middle bottom wall 107 and the lower bottom wall 108 are provided as open walls. At the periphery of the surface wave wave intake tank 105, surface wave wave intakes 110 are opened at a plurality of positions (eight places) slightly below the upper part, and upper surface wave intakes 110 are provided with upper hinges. A check valve 101 is arranged. The check valve 101 is made of a lightweight resin, aluminum alloy, or the like, and is configured so that it can be easily opened by the surface wave 7 while being closed after that.

  Reference numeral 113 denotes a float (height adjusting means), which includes a water supply port portion 114 and a drain port portion 115, and has a structure in which the floating force can be varied by adjusting the amount of internal water. The float 113 is made of resin or metal and has a donut shape when viewed from above, but its longitudinal section is semi-elliptical or semi-circular. This shape is rounded with no resistance to water so that it can be easily squeezed (swayed) under wind waves and can easily follow wave motions such as reciprocating back and forth. It is.

  The upper surface of the float 113 is a part of a semi-elliptical surface so that the surface wave 7 gradually rises and is easily guided to the surface wave inlet 110. The surface above the float 113 may be a straight surface as shown in FIG. 7 and gradually rising toward the surface wave inlet 110. In addition, a plurality of (8) baffle plates 116 are provided on the upper surface of the float 113 so as to extend radially from the outer periphery of the surface layer wave intake tank 105, and the surface layer corrugation is provided on the back side of each pair. By making the inlet 110 located, the surface wave 7 is gradually narrowed to make the wave higher and reliably pass through the surface wave inlet 110 and be taken into the surface wave intake tank 105. .

  A ball joint 118 made of resin, metal, or the like is attached to a location centering on the central opening of the inner bottom wall 107 in the surface wave take-in tank 105, and the outer sphere is based on the inner sphere portion a at the center. The portion b follows and swings along with the swing of the surface wave take-in tank 105 to guide the seawater taken in while allowing the tank 105 to move freely as indicated by an arrow B.

  An upper end of a resin-made flexible downflow guide pipe 120 is inserted into the inner sphere portion a. The downflow guide pipe 120 is a single unit that is sufficiently longer than the water level at the time of high tide in the water area for water quality improvement. A circumferential anchor wire 121 made of a cylindrical tube and having a sufficient length can be wound up by the operation of the winch 123 from above the tank 105 and can be fed out. A peripheral anchor main body 122 is attached to a lower end of the anchor anchor wire 121 so as to be moored to the seabed 5.

  The winch 123 has a function of appropriately locking the rotation. If the crane work ship lifts the entire device up to the water area, the device is levitated and installed on the sea, and the long circumferential anchor wire 121 is introduced into the sea together with the downflow guide tube 120, the wave progresses. With A, the circumferential anchor main body 122 is anchored to the leading side where the wave travels and stops.

  As a result, as shown in FIG. 15, only one surface layer wave inlet 110 is directed toward the wave pushing side and the surface wave 7 is taken in through the inlet 110. At that time, the surface wave take-in tank 105 is configured so as to reciprocate back and forth by a wind or oscillating motion such as pestle, and to generate and supply air using the motion.

  The air supply device 125 engages with a rank axis while engaging with a cylinder type air pump 126 attached to the center of the upper surface 106 of the surface wave intake tank 105, a piston 127 with a rack shaft in the pump 126 as shown in FIG. A reciprocating pinion shaft 128, an entry-side first check valve 129, an entry-side second check valve 130, an exit-side first check valve 131, and an exit-side second check valve 132 are included. A swing arm 134 with a weight 133 is attached to the upper end of the pinion shaft 128 so as to be reciprocally swingable.

  An air supply pipe 136 that supplies pressurized air that alternately flows through the outlet side first and second check valves 131 and 132 is attached to the tip of the downflow guide pipe 120 as shown in FIG. It is connected to such an air nozzle 137, and seawater mixed with air can be discharged to the bottom water area 4 through the gap.

  When the swing arm 134 with the weight 133 reciprocally swings following the wind, for example, the pinion shaft 128 rotates in a certain direction as shown in FIG. When the pinion shaft 128 rotates reversely as shown in FIG. 17, the pressurized air is released through the outlet-side second check valve 132, and the air is continuously discharged through the air nozzle 137 while being mixed into the seawater. Will be able to. The air supply device 125 may be provided at a plurality of locations around the surface wave wave intake tank 105 as shown by broken lines in FIGS. 14 and 15 so that air is stably and reliably supplied.

FIG. 18 shows another embodiment, and shows another mode for allowing the surface wave wave intake tank 105 to follow and swing with respect to the downflow guide tube 120 side. A flexible receiving plate 140 made of silicon resin or the like is attached to the lower bottom wall 88 of the surface wave take-in tank 105, and a downward flow guide tube is formed with respect to the central tube portion b protruding from the deformable flat plate portion a. The upper end of 120 is connected. As shown in the lower right of FIG. 18, a flexible receiving board 140 formed by a spherical bellows part c and a central cylinder part d may be used.
The downflow guide pipe 142 may be a spiral type that turns downward with the same diameter as shown in FIG. In this case, the upper and lower parts may be connected by an elastically deformable suspension wire 143 to be suspended. As shown in FIG. 20, the downflow guide tube 142 may be a helical type that gradually decreases in diameter downward. Also in this case, the upper and lower portions may be connected by the hanging wire 143. Since these downflow guide pipes 142 can be expanded and contracted with a considerable width in the vertical direction, they can correspond to the depth of water.

  2 ... Surface water area 3 ... Middle water area 4 ... Bottom water area 5 ... Sea bottom 7 ... Surface wave 8 ... Surface wave intake tank 12 ... Surface wave intake 20, 73, 113 ... Float (height adjusting means) 22, 55 ... Surface wavy guide 32, 120 ... Downflow guide pipe 37 ... Outlet port 50, 60, 125 ... Air supply device 58 ... Wave actuator 64 ... Arm 52, 68, 81, 136 ... Air supply pipe 61, 83, 126 ... Air Pump 134... Swing arm.

Claims (1)

A reverse for water storage that has an intake space inside and can be opened and closed inside the surface wave inlet of the outer periphery of the tank so as to open inward by the surface wave so that the surface wave can be stored in the tank in order. The surface wave intake tank that is the upper part of the device equipped with a stop valve, and the height of the surface wave intake tank to adjust the height of the surface wave intake port so that the surface wave can be taken in. The lower end is a lower part of the apparatus provided with a discharge opening for discharging intake water toward the bottom water area, while one end upper part is connected in communication with the bottom part on the surface wave intake tank side. A flow guide pipe, a mooring means for fixing the position of the apparatus in a specific water area while making the surface wave inlet correspond to the direction in which the surface wave is approaching, and a downward flow guide pipe from the surface wave intake tank. Air supply device that can supply air to the flow path to the outlet The upper part of the device is levitated for the specific water area stratified by the surface water area, the oxygen-deficient bottom water area, and the middle water area between them, and the surface wave passes through the surface wave intake. A water quality improvement device configured to discharge water from a discharge port to a bottom water area through a downflow guide pipe, while the air supply device is configured to be discharged into a surface wave intake tank, A responding member that is a pump type and is a float-type wave actuator that reciprocates up and down according to the up-and-down motion of the surface wave, and an arm that swings up and down around a certain rotation axis by the up-and-down reciprocation of the responding member And an air pump that is connected to the upper and lower swinging portions of the arm and generates pressurized air by swinging, and is provided at the lower end of the downflow guide pipe by an air pump. An air nozzle so as to mix the raw to pressurized air to the downward flow to be discharged through the discharge port, said that the water quality improving apparatus of an air supply pipe for guiding the pressurized air from the air pump to the air nozzle.

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